Application of digital image-based heterogeneity characterization in coupled hydromechanics of rock

ZHU Wancheng; KANG Yumei; YANG Tianhong; LI Zhanhai; LIU Jishan

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Volume 28 Issue 12

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Chinese Journal of Geotechnical Engineering > 2006 > 28(12): 2087-2091.

ZHU Wancheng, KANG Yumei, YANG Tianhong, LI Zhanhai, LIU Jishan. Application of digital image-based heterogeneity characterization in coupled hydromechanics of rock[J]. Chinese Journal of Geotechnical Engineering, 2006, 28(12): 2087-2091.

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Application of digital image-based heterogeneity characterization in coupled hydromechanics of rock

1.Center for Rock Instability and Seismicity Research Northeastern University Shenyang 110004 China 2.School of Oil and Gas Engineering University of Western Australia WA 6009 Australia

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Published Date: December 14, 2006

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Abstract

Abstract

The heterogeneity has significant effect on the failure process and seepage characteristics of rock.A digital image-based(DIB) technique was proposed to characterize and quantify the heterogeneity of rock,and it was implemented into RFPA(Rock failure process analysis) code in order to simulate the complete failure process of rock under both the external loading and fluid pressure.It was shown by numerical simulations that the DIB technique was effective in capturing the rock heterogeneity,and it paved a new way for quantifying the effect of local heterogeneity on macroscopic failure process and seepage characteristics.
- rock,
- heterogeneity,
- digital image-based technique,
- numerical simulation